INTRODUCTION: Anorexia nervosa is a common eating disorder associated with fear of gaining weight and when severe can cause life-threatening complications. While mild elevations in liver enzymes can occur in anorexia, severe liver injury is rarely reported. Autophagy is a liposomal catabolic pathway that is crucial for cell survival under stressful conditions. We present the case of a young female with anorexia nervosa with severe malnutrition found to have significantly elevated liver enzymes concerning for autophagocytosis of the liver. CASE DESCRIPTION/METHODS: A 19-year-old female with a history of severe anorexia nervosa (BMI 11.5) presented with 3 days of abdominal pain. Basic lab testing was done which revealed significant elevations in LFTs in a hepatocellular pattern with both AST and ALT above 1000. The patient underwent abdominal imaging with no major abnormalities found and viral, drug-induced, and autoimmune causes were also ruled out. However, her LFTs continued to uptrend with a peak AST of 6328 and ALT of 5606 and her hospital course was complicated by hypotension requiring ICU care. Due to severe nutritional deficits and inability to tolerate oral intake, the decision was made to initiate supplemental nutrition first with TPN and subsequently with enteral feeding through a PEJ. Following nutrition initiation, the patient’s liver enzymes started to down-trend and ultimately normalized within a couple weeks of nutritional support. Therefore, it was determined that the patient’s acute liver elevations and abdominal pain were likely secondary to liver autophagocytosis in the setting of severe starvation from anorexia nervosa. Due to the normalization of her LFTS, liver biopsy was not pursued. The patient improved and was discharged to a specialized eating disorder rehabilitation center. DISCUSSION: Autophagy is a physiologic process the body activates under episodes of severe stress which can include severe malnutrition. While mild liver enzyme elevation can occur, there are only a few reported cases of profound LFT elevation such as in this patient. Initiation of enteral/parenteral nutrition appears to improve liver injury and stop autophagy. Therefore, careful implementation of nutritional support and close monitoring of LFTs is essential in anorexic patients with liver injury to help treat the underlying condition, avoid unnecessary invasive diagnostic testing, and prevent further autophagy.